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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties


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Description of key information

A reliable measured value of solid density (d = 1.17 g/cm3) is available only for a temperature of 24.7 °C.  A reliable measured value for liquid density (d = 0.97 g/cm3) is available at 100 °C

Key value for chemical safety assessment

Relative density at 20C:

Additional information

The critically-reviewed and accepted value of solid density is reported by Daubert and Danner in the AIChE DIPPR database as 1.17 g/cm3 at 24.7 The density reported in Verschueren (2001) is consistent with this value, whereas other values available from two different handbooks indicated a (suspect) lower density value of 1.04 g/cm3 for lower temperature of 20 °C. The density of liquid biphenyl is also reported, as this is relevant for the physical state of the substance during processing/use.